Sakura Airi

Biodata

Feature	Value
Name	Sakura Airi (佐仓爱里)
Alias(es)	“Shizuku,” a temporarily retired gravure idol 13
Gender	Female
Affiliation	Class D, Advanced Nurturing High School 13 74
Occupation/Role	Student; photographer; former gravure idol 13 38 39
Status	Active 111
First Appearance	Chapter 13

Background

Airi concealed her past as the gravure idol “Shizuku” while maintaining a low profile at school, often hiding behind her camera. She spent heavily on a high-performance digital camera to pursue photography, leaving her with very few private points for daily expenses. 13 38

Her first extended interaction with Wu Qiao began when he asked her to teach him photography. Though initially frightened by the prospect of social contact, she accepted because of her financial situation and gradually became more comfortable around Wu Qiao and Ichinose Honami. 38 39

Soon afterward, Airi became the target of a stalker who left harassment letters and candid photographs in her locker. Terrified that public attention would expose her past and destroy her quiet school life, she initially tried to endure the problem alone. Wu Qiao arranged an anonymous resolution through the student council, allowing her to face the incident without becoming publicly identified. 40 43 44

Appearance

Airi is a fair-skinned girl with fiery red hair who usually presents herself inconspicuously behind plain glasses and a camera. Without her glasses and with her hair down, her eyes appear notably clear. 40 86

• Often carries a camera and her diary. 38 89
• Habitually keeps her head down and tries to minimize her presence in crowds. 40 44
• Wears glasses, which she pushes up while assessing photographs. 39
• Her reserved appearance contrasts with the confidence she shows while teaching photography. 56

Personality

Airi is severely shy and socially anxious, fearing both direct human contact and becoming the focus of other people’s attention. Her fear of exposure is tied to her former idol work; she would rather suffer harassment in silence than risk losing the ordinary student life she values. 38 43 44

When discussing photography or singing, Airi becomes focused, knowledgeable, and unexpectedly authoritative. She gives technical critiques plainly and takes pride in helping Wu Qiao improve. 39 56 70 74

Her diary reveals a far more mischievous and adventurous inner self. In its simulated futures, she experiments with pranks, bold romantic gestures, and confrontations she cannot initially bring herself to attempt in reality. Over time, this private trial-and-error helps her become more proactive, honest, and willing to support others. 54 55 57 85 89

Abilities & Skills

Future Diary

Airi possesses an infinite-page diary that records the past and updates in real time with future events. Its text changes when she changes her own choices, allowing her to test possible outcomes before acting. 38 54

• Lets her preview and alter possible futures through repeated choices. 38 54
• Functions only from her own perspective; she cannot use it to investigate events she did not witness in the past. 83
• Used to identify the optimal time, place, and camera angle for viewing a meteor shower. 56
• Allowed her to anticipate exam questions through past papers matching the diary’s future record. 57
• Helped Wu Qiao investigate Nagumo Miyabi by identifying locations and timings for potential evidence. 89
• Can lead to exhaustion when she stays awake conducting excessive trials. 54 55
• Her confidence inside the diary does not always transfer to reality. 55 56

Photography

Airi is a skilled photographer with professional-level command of composition, light, shadow, angle selection, and emotional presentation. 38 39

• Improved Ichinose Honami’s portrait by using a subtle angle shift and dappled backlighting to create depth. 39
• Teaches Wu Qiao aperture, shutter, composition, exposure, and silhouette photography. 56 54
• Recognizes physical mobility as a useful tool for finding difficult shooting angles. 39
• Photographed Wu Qiao, Ayanokoji Kiyoha, and Ichinose Honami during morning training. 91
• Takes photographs with Wu Qiao during the cruise-ship special exam. 110

Vocal Training

Airi received systematic vocal-music education and professional voice training before enrolling at the school. 70

• Coaches Wu Qiao on breath control, smooth vocal transitions, and emotional expression. 70 74
• Performs a duet with Wu Qiao at a KTV gathering, helping him convey the emotion of his song. 74 75

Equipment / Items

• Future Diary — an infinite-page notebook that updates with past and future events from Airi’s perspective. 38 83
• High-performance digital camera — purchased with personal points despite the resulting financial strain. 38
• Glasses — part of her usual low-profile appearance. 39 86

Relationships

• Wu Qiao — Initially her photography student; he protects her during the stalker incident, while she gradually develops romantic feelings for him and later assists his investigation of Nagumo Miyabi. 38 44 75 89
• Hasebe Haruka — Airi’s close friend and confidante. Haruka supports her during romantic misunderstandings and encourages her to be more proactive. 63 70 85
• Ichinose Honami — Airi is initially intimidated by Ichinose’s confidence but warms to her through photography. She repeatedly misreads Ichinose’s meetings with Wu Qiao as romantic developments. 38 59 84
• Wang Meiyu — Helps prevent Airi from going to the student council office during the stalker case and later assists her alongside Wu Qiao’s plans. 43 44
• Kushida Kikyo — Provides Airi with past exam papers that correspond to answers she has seen in her diary. 57

Story Role / Major Arcs

• Photography Lessons — Airi accepts Wu Qiao’s request for photography instruction, overcoming some of her fear of social interaction while helping him develop the emotional side of his photography. 38 39
• Stalker Incident — After receiving harassment letters and candid photographs, Airi struggles with panic and secrecy until Wu Qiao resolves the matter anonymously. She decides she can ask him for help in the future rather than hiding alone. 40 43 44
• Diary Experimentation — Inspired by Wu Qiao’s theory of infinite trial and error, Airi repurposes her diary as a safe space to explore bolder versions of herself. 53 54 55
• Romantic Uncertainty — Airi repeatedly mistakes Wu Qiao and Ichinose’s meetings for dates, realizes her feelings for Wu Qiao, and receives Haruka’s encouragement to stop retreating from them. 59 61 75 84 85
• Rooftop Conversation — Airi openly tells Wu Qiao about her insecurity, idol background, and fear of others’ attention. Her honesty leaves a strong impression on him. 86 87
• Nagumo Investigation — Airi offers her diary’s information to Wu Qiao and works with him discreetly to uncover evidence against Nagumo Miyabi. 89
• Cruise Ship Exam — She supports Wu Qiao amid rumors about Ichinose and spends time taking photographs with him aboard the ship. 110
• Uninhabited Island Exam — Airi volunteers to remain behind despite Wu Qiao’s concern over her low stamina. 111

Notable Quotes

“Sakura Airi. I am Sakura Airi.” 89

“Wu-kun, you're actually... not that scary.” 86

“No. Because I know what kind of person Wu-kun is, so I won't misunderstand.” 110

Trivia

• Wu Qiao calls her “Teacher Sakura” because of her photography and singing instruction. 39 74
• Airi’s diary-driven curiosity extends to gossip; she used it to investigate who was leaving snacks for Ichinose Honami. 59
• Her imagination often turns her quiet photography lessons with Wu Qiao into elaborate romance scenarios that he does not know about. 56